x11 palette inaccuracy?

[Juhász P. <pet...@gm...>]

Dear gnuplot list,

continuing my recent series "exposing possible bugs by fun, useless
scripts", here is a nice plasma effect:


set term x11
set sa 50
set isosa 50
set pm3d
unset surface
set view map

plasma(x,y) = sin(x/.8)+sin(y/1.6)+sin((x+y)/1.9)
pal(t) = sprintf("set pal model HSV functions frac(gray+%f),0.5,1", t)
frac(x)= x-int(x)
t = 0
while(t<10){eval pal(t); t= t+0.01; pr t; splot plasma(x,y)}


With the x11 terminal I notice that there is "snowing" on the picture,
that is, some of the pm3d rectangles have incorrect color in certain
frames. Rounding or accuracy effect?

I don't know if this is significant at all, but it doesn't show with the
wxt or qt terminals.

Peter